Gas generator and burner



EALSTE jan., 22 9 1924.,

W. T. VAN BRUNT GAS GENERATOR AND BURNER Filed Nov. 20. 14920 @attested liana 22 WILLEM@ TH@ i VAN BRUNEL, OF REDEANK, NEW EEES.

.appiicsiioii mea november 2o, 192e. serial nu. 425,297.

kerosene maybe converted into as, the gas carburetted and burned in an e cient manner.

The novel features of construction are herein described and pointed out in the claims.

Referring to the drawings which forni a part of this specification,

liig. l is a longitudinal sectional View of a construction embodying my invent-ion;

Fig, 2 is a plan View;y

Fig. 3 is a longitudinal sectional view of the outlet valve drawn on a larger scale and g illustrates how the needle is protected from carbon or other deposit. i

A indicates the body of the burner and is usually made of cast iron. Cast integral with the body portion is a grid burner B 4 comprising a. number of parallel strips which form very narrow slots C--C--C' extending across the body portion, and through which the generated `ases pass and are burned in the chamber "formed directly above the grid Bi The top of the chamber D is shown as circular in form but may be made in any desired shape, and is provided with openings lE--E respectively to e1-init the prodnets of combustion to free y escape in case a pan is placed over the entire top in the act ci cooking. The body portion comprises an extension Ai' having a partition F extending entirely across the extension and termin a dish F. By reason of the par tition agoose-neclr passage G is formed leading from the air inlet lul to the gas chamber ll, said passage being restricted by the inwardly extending circular ilange il'. A screen K is located at this point to prevent ignition of the gas in the' goose-neck passage G. Located in the bottoni` of the passsge G is an absorbent ad M of asbestos which l' prefer to place in a `drawer L for easy removal, but the drawer may be disu pensed with if desired, in which casetlie pad M is made to closel the opening in whichV the drawer slides. N indicates a chamber to receive a small amount of gasolene and @it a small tube O extends to the spray nozzle of the atomizer which comprises a nut Q, provided with a small cylindrical passage R, formed in juxtaposition to the nozzle l? and at a right angle thereto. the nozzle l? is cupped or formed bell shaped so that ay jet of air projected across it from 'the passage R willv create a suction and lift the gasolene 'from the tube 0 and spray it into the vgoose-neck passage G, the spray so l@ formed causinan induction of air through the auirinlet to mix with tbe -atomized gasolene and How through the passaige G to the chamber l. S indicates a reservoir for kerosene oil and S the oil therein. T indica'tes a tube through which the oil is forced by compressed air located above the oil, through the pipe U to the control coclr V2. i A. pipe W conducts air from the reservoir S to the valve casing Wi. W is provided'with a threaded bore W2 which engages one end of a pipe X, cornprising a retort gas generating chamber Xi. The nut @screws on the opposite end of the pipe X, thus holding it in fixed rela-tion to the body portion A. A tube Y is threaded at Y in 'the casing; VV, the end Y2 of which is" adapted to abuty the inner wall of the nut Q and serve asla valve to control the cylin drical 7passa-ge R. Extending through the tube.' l. is a rod Z one end of which is re;- duced in diameter 'to provide a. cleaning rod Z which is adapted to slide through the passage llt to clean the same and is retracted by the spring Z2 within a sheath of asbestos 95 indicated by ZS which serves to protecty the needle Z. The control valve is provided with a single assage VS which is adaptedl to register with the inlet V leading; to tbe air supply, in reservoir S, and with the oii W@ supply pipe W1 By means of the handle YS 'the valve Y2 may be operated.

The device operates as followsz- Assumin the reservoir S to be partly lilled with Kerosene and air under pressure W5 in the top thereof, the cup N is filled with gasolene which will rise in tube 0 nearly to the top of the spray nozzle P. The cools V2 is 'then' opened to admit air from the pipo W to the chamber X'. opened to permit the air to pass through the orifice R and draw gasolene from the The outlet from @5* The valve casing S@ ylhe valve Y2 is their pipe 0' and spray it into the goose-neck4 Gr, causing air to be inducted throu'gh the opening H and mixing with the gasolene thus forming a combustible mixture which flows through the screen K into the chamber l. and through the slots C-C, etc., of the grid-burner B. above whichV it is i nited, and the flame heats the retort X. y the time the. gasolene is exhausted, the retort is heated sufficiently to vaporize the kerosene which is then admitted to the chamber X by turnin the cock V2 to open communication with t e oil inlet V, the oil flowing under the air pressure into the chamber X -where it is vaporized and passing through the orilice R flows into the goose-neck passage G and induces' air through the opening H, thus forming a carburetted mixture which flows to the burner in place of the gasolene mixture.

The absorbent pad M absorbs any free oil that may be carried over in starting the operation ot the burner and after the burner has operated a short time and the adjustment of the control valve Y2 is accurately set, the oil absorbed by the pad is gradually taken up by the heated gas flowing over it, leaving it dry and ready' to act when 'the burner is again being started. The flow of oil from the reservoir is controlled since a higher gas pressure than normal in the retort chamber X will .force the oil backward to the reservoir S, and as the pressure in chamber X is reduced below that of the air pressure on the oil, the oil will again be forced to the retort chamber. This action causes a constant surging action of the gas in the generator within small limit-s and this action serves to carry out any free carbon that may be formed in the chamber X and carry it downward through the valve V and feed port V to the reservoir S and for this reason the reservoir should be located bclow the level of the burner to obtain the best results. The air pressure is usually about fifteen pounds per square inch above that oi" the atmosphere and is supplied by a hand pump or other suitable means.

Having thus described my invention, l'

claim as new and desire to secure by Letters Patentz- 1. The combination of a. gas generator and burner comprising a body portion, a retort supported in the body portion-having an unrestricted inlet for oil and a valve controlled outlet for vapor, a burner, a conduit leading from the vapor outlet to said burner., a pad of absorbent material located in the bottom of said conduit.

The combination of a gas generator and burner comprising a body portion having a conduit at one side thereof which is provided with an inlet opening for air and vwith an upwardly extending partition to and a burner, all formed integral with the f body portion, said gas generator extending across the body portion above the burner, a hollow valve-rod extending through said retort, and a rod extending through said valve-rod, one end ofrwhich is adapted to extend through said outlet.

3. The combinationvof a gas generator and burner having a retort extending across the burner above the same, and provided with an outlet, a hollow valve-'rod extending through said retort, a rod extending through said valve-rod one end ot which is adapted to extend through said outlet and a protecting envelope for said lust narncil rod carried by 'said hollow valve rod at.the end adjacent said outlet.

4. The combination of .a gas generator and burner comprisingxa retort 'having an outlet, a receptacle for gasolene ,lo'catnd adjacent said outlet anlfa conduit leading from said receptacle -tosaid` outlet.

5. rllhe combination.4 of ra gas generator and burner comprising aretort having a valve controlled outlet, a receptacle for gas olene located adjacent said/outlet and a conduit leading from said receptacle to said outlet. i

6. The combination of la gas generator and burner comprising vva retort having an outlet, a receptacle for gasolene located adjacent said outlet and "aonduit leading from said receptacle to said'l outlet. said receptacle being located relative to the height of said outlet so that-the gasotene therein is normally below the level of the .outlet but may be lifted by suction and sprayed by a gas iowing from said outlet.

7. The combination of a gas generator' and burner comprising a body portion. a retort supported in the. body portion having an unrestricted inlet 'for oil and a valve controlled outlet for vapor. a burner, a conduit leading from the vapor outlet to said burir er, an inlet for air communicating with said conduit and a drawer in said conduit.

8. The combination of a gas `generator and burner comprising a body portion, a retort supported in the body portion having an unrestricted inlet for oil and a valve controlled outlet for vapor, u burner, a conduit leading from the vapor outlet to said burner, an inlet for air communicating with said conduit, a drawer in said conduit and absorbent material in said drawer.

Signed at New fork city. in the-county oi New York and State of New York, this 18th day of November D. 1920.

VVlLLlAM Tltitlh'lS VAN BRUNT.

Vi/'itness FRANK M. ASHLEY. 

